The officer, Mark Sauvao, said he was retaliated and discriminated against after reporting that colleagues had called him names and spread false rumors about him.
One-time LAPD assistant chief Al Labrada has filed a claim alleging mistreatment by ex-chief Michel Moore over handling of allegations against Labrada.
The officer from the LAPD's training division said she broke off her five-year romantic relationship with former assistant chief Alfred "Al" Labrada in July.
Now-commander Al Labrada says he was unfairly punished and publicly humiliated after an ex-girlfriend reported she found a tracking device. Labrada denies.